Under these studies Bacillus thuringiensis wettable powder comparable to standard strain, there are only one isolate which confirmed by molecular characterization. Scanning electron microscopy observed that the presence of cuboidal crystals in Bacillus thuringiensis Alex-13, and observed bipyramidal crystals in case of Bacillus thuringiensis HD-1, as standard strain. Polymerase chain reactions (PCR) revealed the presence of Cry1-like sequences in addition to standard strain, which confirmed by gel electrophoresis. Also, during these studies.Bioassay recorded that the highest mortality rate by determination of LC50 for 5 days against Spodoptera littolaris third instars larvae were 69, 86, and 100(%) in case of Bt Alex-13, Bt-HD-1 standard strain and Bt commercial wettable powder, respectively.
在这些研究中，苏云金芽孢杆菌可湿性粉剂与标准菌株相当，只有一株经分子鉴定得到证实。扫描电镜观察到苏云金芽孢杆菌alex1 -13中存在立方晶体，苏云金芽孢杆菌HD-1中存在双锥体晶体。聚合酶链反应(PCR)显示，除标准菌株外，还存在cry1样序列，凝胶电泳证实了这一点。同时，在这些研究中。生物测定结果显示，Bt alex13、Bt hd -1标准品系和Bt可湿性商业粉剂对小夜蛾3龄幼虫5 d的LC50死亡率最高，分别为69%、86%和100%。
{"title":"Characterization and Toxicity of Bacillus Thuringiensis Strain Kfr-24, And Commercial Formulations against Spodoptera Littolaris","authors":"H. A. Ahmed, Salah G. Ali, U. Abdul-Raouf","doi":"10.0001/(aj).v3i0.723","DOIUrl":"https://doi.org/10.0001/(aj).v3i0.723","url":null,"abstract":"Under these studies Bacillus thuringiensis wettable powder comparable to standard strain, there are only one isolate which confirmed by molecular characterization. Scanning electron microscopy observed that the presence of cuboidal crystals in Bacillus thuringiensis Alex-13, and observed bipyramidal crystals in case of Bacillus thuringiensis HD-1, as standard strain. Polymerase chain reactions (PCR) revealed the presence of Cry1-like sequences in addition to standard strain, which confirmed by gel electrophoresis. Also, during these studies.Bioassay recorded that the highest mortality rate by determination of LC50 for 5 days against Spodoptera littolaris third instars larvae were 69, 86, and 100(%) in case of Bt Alex-13, Bt-HD-1 standard strain and Bt commercial wettable powder, respectively.","PeriodicalId":7790,"journal":{"name":"Anglisticum Journal","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82372156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The unicellular green algae Chlorella minutissima and Chlorella oocystoides were isolated from different regions in Upper Egypt. The effect of different concentrations of salinity (100, 250 and 500 mM NaCl) on growth parameters (optical density, dry weight, and total photosynthetic pigments) and primary products (total carbohydrates, total proteins, and lipids contents) were measured after 7 days. The growth parameters, and the primary products of Chlorella minutissima and Chlorella oocystoides were significantly increased at lower and moderate concentrations (100 and 250 mM NaCl). Under higher concentration 500 mM of NaCl, the growth parameters, and the primary products (total carbohydrates, and total proteins) were significantly decreased. However, the lipid contents were markedly increased. Keywords: Chlorella minutissima, Chlorella oocystoides, cell growth, total carbohydrates, total proteins and lipid contents.
单细胞绿藻小球藻(Chlorella minutissima)和卵囊小球藻(Chlorella oocystoides)分别来自上埃及不同地区。7 d后，测定不同盐度(100、250和500 mM NaCl)对生长参数(光密度、干重、总光合色素)和初级产物(总碳水化合物、总蛋白质和脂质含量)的影响。低、中浓度(100和250 mM NaCl)显著提高了小球藻和卵囊小球藻的生长参数和主要产物。在较高浓度500 mM NaCl处理下，其生长参数和主要产物(总碳水化合物和总蛋白质)均显著降低。脂质含量明显升高。关键词:微小小球藻，卵囊样小球藻，细胞生长，总碳水化合物，总蛋白和脂质含量
{"title":"Interference Effects of Salinity on Growth and Some Metabolic Activities of Two Chlorella Species","authors":"S. Desouky, T. Taha, E. Elsayed, A. Mebed","doi":"10.0001/(AJ).V3I0.721","DOIUrl":"https://doi.org/10.0001/(AJ).V3I0.721","url":null,"abstract":"The unicellular green algae Chlorella minutissima and Chlorella oocystoides were isolated from different regions in Upper Egypt. The effect of different concentrations of salinity (100, 250 and 500 mM NaCl) on growth parameters (optical density, dry weight, and total photosynthetic pigments) and primary products (total carbohydrates, total proteins, and lipids contents) were measured after 7 days. The growth parameters, and the primary products of Chlorella minutissima and Chlorella oocystoides were significantly increased at lower and moderate concentrations (100 and 250 mM NaCl). Under higher concentration 500 mM of NaCl, the growth parameters, and the primary products (total carbohydrates, and total proteins) were significantly decreased. However, the lipid contents were markedly increased. Keywords: Chlorella minutissima, Chlorella oocystoides, cell growth, total carbohydrates, total proteins and lipid contents.","PeriodicalId":7790,"journal":{"name":"Anglisticum Journal","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82072577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Abdel‐Rahman, R. El‐Khatib, L. A. E. Nassr, A. Abu‐Dief
The reactivity of few novel high spin Fe(II) complexes of Schiff base ligands derived from 2-hydroxynaphthaldehyde and some variety of amino acids with OH- ion has been examined in aqueous mixture at temperature in the range 10–40 Co. Based on the kinetic investigations, the rate law and a plausible mechanism were proposed and discussed. The general rate equation was suggested as follows: rate = kobs [Complex], where kobs.= k1 + k2 [OH-]. Base catalyzed hydrolysis kinetics measurements imply pseudo-first-order doubly stage rates due the presence of merand fac-isomers. The observed rate constants kobs are correlated the effect of substituent R in the structure of the ligands.From the effect of temperature on the rate; various thermodynamic parameters have been evaluated. The evaluated rate constants and activation parameters are in a good agreement with the stability constants of the investigated complexes. Keywords: Base catalyzed hydrolysis, Isomer, Reaction mechanism, Thermodynamic parameters
{"title":"Kinetic investigation of hydroxide ion and DNA attack on some high spin iron (II) chelates Bearing ONO Donors amino acid Schiff bases","authors":"L. Abdel‐Rahman, R. El‐Khatib, L. A. E. Nassr, A. Abu‐Dief","doi":"10.0001/(AJ).V3I0.715","DOIUrl":"https://doi.org/10.0001/(AJ).V3I0.715","url":null,"abstract":"The reactivity of few novel high spin Fe(II) complexes of Schiff base ligands derived from 2-hydroxynaphthaldehyde and some variety of amino acids with OH- ion has been examined in aqueous mixture at temperature in the range 10–40 Co. Based on the kinetic investigations, the rate law and a plausible mechanism were proposed and discussed. The general rate equation was suggested as follows: rate = kobs [Complex], where kobs.= k1 + k2 [OH-]. Base catalyzed hydrolysis kinetics measurements imply pseudo-first-order doubly stage rates due the presence of merand fac-isomers. The observed rate constants kobs are correlated the effect of substituent R in the structure of the ligands.From the effect of temperature on the rate; various thermodynamic parameters have been evaluated. The evaluated rate constants and activation parameters are in a good agreement with the stability constants of the investigated complexes. Keywords: Base catalyzed hydrolysis, Isomer, Reaction mechanism, Thermodynamic parameters","PeriodicalId":7790,"journal":{"name":"Anglisticum Journal","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87876853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Lahsasni, S. Mohamed, Mustafa R. Albayati, A. El-Saghier
A Series Of Potential Biologically Active Compounds Have Been Synthesized Through The Derivatization of Carboxyl Group In Naproxen Core Structure Involving The Conversion The Naproxen To Its Methyl Ester Then To The Acid Hydrazide. The Acid Hydrazide Of Naproxen Was Incorporated With Hydrazones, Diamide Linkage, Oxadiazole, Pyrazolone, Triazole, Quinazoline And Indole Containing Motifs. The Targeted Compounds Have Been Achieved In A Very Good Yield Under Conventional Heat And Irradiation Conditions. All Compounds Have Been Characterized By Ir, 1h-Nmr, 13c-Nmr And Mass Spectra. Keywords: Naproxen; Anti-Inflammatory; Nsaid's.
{"title":"Synthesis of New Potential Chemotherapeutic Agents Incorporating Naproxen Sub-Structure","authors":"S. Lahsasni, S. Mohamed, Mustafa R. Albayati, A. El-Saghier","doi":"10.0001/(AJ).V3I0.718","DOIUrl":"https://doi.org/10.0001/(AJ).V3I0.718","url":null,"abstract":"A Series Of Potential Biologically Active Compounds Have Been Synthesized Through The Derivatization of Carboxyl Group In Naproxen Core Structure Involving The Conversion The Naproxen To Its Methyl Ester Then To The Acid Hydrazide. The Acid Hydrazide Of Naproxen Was Incorporated With Hydrazones, Diamide Linkage, Oxadiazole, Pyrazolone, Triazole, Quinazoline And Indole Containing Motifs. The Targeted Compounds Have Been Achieved In A Very Good Yield Under Conventional Heat And Irradiation Conditions. All Compounds Have Been Characterized By Ir, 1h-Nmr, 13c-Nmr And Mass Spectra. Keywords: Naproxen; Anti-Inflammatory; Nsaid's.","PeriodicalId":7790,"journal":{"name":"Anglisticum Journal","volume":"77 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77855599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. H. Mohamed, E. Hamed, T. Mohammed, F. A. A. Razek, M. Zaid
The early growth, mortality rates and bacterial infections of the cultured Sepia Officinalis were experimentally studied in the laboratory. Two hundred eighty five sepia larvae were hatched and placed in a 100 liter capacity rectangular glass aquarium (filled with seawater) in the laboratory. The Sepia individuals (285 individuals) were divided into two groups the first fed on a mixture of amphipods, rotifers and artemia and the second group fed only on amphipods to follow their growth and mortality. The second group was observed to grow faster with length 6.76 ± 0.06mm and weight 0.11 ± 0.01gm than the first one. The survival rate was 100% by the end of the first week and decreased gradually by the end of the second week. The recorded mortality rate reached 49% by the day 15th, where they infected with bacterial disease of Vibrio alginolyticus. The clinical signs of the diseased S. Officinalis were lethargic condition, food fasting and multiple skin ulcers with white-gray discoloration were observed and appeared on the body. The main post mortem lesions were congestion of the internal organ, beside the presence of ascetic fluid. The mortality among the diseased Sepia was increased by age; however it may causes death of most individuals by increasing time more than two weeks. The findings of antibiotic sensitivity test cleared that the isolated V. alginolyticus was sensitive to amoxiclav (amoxicillin-clavulanate), streptomycin, ciprofloxacin and chlormphinicol. Controversially, it was resistant to oxytetracycline, tobramycin, gentamycine and enrofloxacin. Keywords: Sepia Officinalis - growth rate - mortality rate - bacterial infections
{"title":"Bacterial Diseases Affecting the Cultured Sepia Officinalis Leading to Increase Mortality Rates in The Laboratory","authors":"M. H. Mohamed, E. Hamed, T. Mohammed, F. A. A. Razek, M. Zaid","doi":"10.0001/(AJ).V3I0.735","DOIUrl":"https://doi.org/10.0001/(AJ).V3I0.735","url":null,"abstract":"The early growth, mortality rates and bacterial infections of the cultured Sepia Officinalis were experimentally studied in the laboratory. Two hundred eighty five sepia larvae were hatched and placed in a 100 liter capacity rectangular glass aquarium (filled with seawater) in the laboratory. The Sepia individuals (285 individuals) were divided into two groups the first fed on a mixture of amphipods, rotifers and artemia and the second group fed only on amphipods to follow their growth and mortality. The second group was observed to grow faster with length 6.76 ± 0.06mm and weight 0.11 ± 0.01gm than the first one. The survival rate was 100% by the end of the first week and decreased gradually by the end of the second week. The recorded mortality rate reached 49% by the day 15th, where they infected with bacterial disease of Vibrio alginolyticus. The clinical signs of the diseased S. Officinalis were lethargic condition, food fasting and multiple skin ulcers with white-gray discoloration were observed and appeared on the body. The main post mortem lesions were congestion of the internal organ, beside the presence of ascetic fluid. The mortality among the diseased Sepia was increased by age; however it may causes death of most individuals by increasing time more than two weeks. The findings of antibiotic sensitivity test cleared that the isolated V. alginolyticus was sensitive to amoxiclav (amoxicillin-clavulanate), streptomycin, ciprofloxacin and chlormphinicol. Controversially, it was resistant to oxytetracycline, tobramycin, gentamycine and enrofloxacin. Keywords: Sepia Officinalis - growth rate - mortality rate - bacterial infections","PeriodicalId":7790,"journal":{"name":"Anglisticum Journal","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78521985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. H. El-Ebiary, N. Eweedah, E. Abdel-Raouf, Ragab M. Abdel-Regal, Basem S. Abdel-Aty
During the production season (2010-2011), this work was carried out at a commercial tilapia hatchery in Motobas, Kafr El-Sheikh Governorate- Egypt. Two experiments were managed using the same design to make a comparison between spawning of Nile tilapia Oreochromisniloticusbroodstock off-season (the winter) and on-season (the summer). The two experiments were tested by studying the effects of using feed additive (Nuvisol hatch P® 0.1%), different broodstock sizes (350, 200, 150 and mixed up to 250 g/fish) and stocking densities (50, 55, 60 female/pond-24m2) on growth performance, feed utilization, reproductive performance and economical profitability parameters of Nile tilapia, O.niloticus spawned in the summer and in the winter. Comparing the results of the economic analysis of the two experiments showed that the total production of Nile tilapia fry per each spawning pond, 24 square meters, is 28,090 within the natural spawning season, an increase of 2.23% from that was spawning outside the normal season (27478 fry). Though total revenue and net income under hatchery conditions in the out off-season (February 2010) much higher than that in natural spawning season (April 2011) by 22.01%. This is of course due to the price of tilapia fry in the winter months is higher than the summer to supply shortages in winter and increased demand at the same time. This is due to the farmers need to start the growing season early, March/April, in order to harvest their fish before temperatures drop in the next winter, which adversely affect the life of the fish.
{"title":"Comparative Study between the Performances of Nile Tilapia Oreochromisniloticus during and Out of the Normal Spawning Season","authors":"E. H. El-Ebiary, N. Eweedah, E. Abdel-Raouf, Ragab M. Abdel-Regal, Basem S. Abdel-Aty","doi":"10.0001/(AJ).V3I0.729","DOIUrl":"https://doi.org/10.0001/(AJ).V3I0.729","url":null,"abstract":"During the production season (2010-2011), this work was carried out at a commercial tilapia hatchery in Motobas, Kafr El-Sheikh Governorate- Egypt. Two experiments were managed using the same design to make a comparison between spawning of Nile tilapia Oreochromisniloticusbroodstock off-season (the winter) and on-season (the summer). The two experiments were tested by studying the effects of using feed additive (Nuvisol hatch P® 0.1%), different broodstock sizes (350, 200, 150 and mixed up to 250 g/fish) and stocking densities (50, 55, 60 female/pond-24m2) on growth performance, feed utilization, reproductive performance and economical profitability parameters of Nile tilapia, O.niloticus spawned in the summer and in the winter. Comparing the results of the economic analysis of the two experiments showed that the total production of Nile tilapia fry per each spawning pond, 24 square meters, is 28,090 within the natural spawning season, an increase of 2.23% from that was spawning outside the normal season (27478 fry). Though total revenue and net income under hatchery conditions in the out off-season (February 2010) much higher than that in natural spawning season (April 2011) by 22.01%. This is of course due to the price of tilapia fry in the winter months is higher than the summer to supply shortages in winter and increased demand at the same time. This is due to the farmers need to start the growing season early, March/April, in order to harvest their fish before temperatures drop in the next winter, which adversely affect the life of the fish.","PeriodicalId":7790,"journal":{"name":"Anglisticum Journal","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80245699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Magnetic electron objective lens is of a great importance for electron microscope intended for high resolution. The present work investigates the objective properties of a single pole piece magnetic lens with different pole piece shapes. The results indicate that the lens with a spherical pole – face has the best resolution. Keywords: Finite element method; objective magnetic lenses; aberration PACS: 41.85
{"title":"Studies on the Effect of Pole Piece Shape for Saturated Single Pole Magnetic Lens","authors":"S. S. Elshahat, A. Amir, G. S. Hassan","doi":"10.0001/(AJ).V3I0.709","DOIUrl":"https://doi.org/10.0001/(AJ).V3I0.709","url":null,"abstract":"Magnetic electron objective lens is of a great importance for electron microscope intended for high resolution. The present work investigates the objective properties of a single pole piece magnetic lens with different pole piece shapes. The results indicate that the lens with a spherical pole – face has the best resolution. Keywords: Finite element method; objective magnetic lenses; aberration PACS: 41.85","PeriodicalId":7790,"journal":{"name":"Anglisticum Journal","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76156000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-01-08DOI: 10.0001/(AJ).V3I0.707.G857
H. S. Hassan, A. Kashyout, H. Soliman, M. Uosif, N. Afify
ZnO either nanoparticles or nanorods were synthesized via sol-gel technique. Many factors were studied and optimized in order to obtain different morphological structures of nano-ZnO. Effect of reaction time (3, 6, 12, 24 and 48 hours) has been studied to optimize the best preparation condition. Reducing agent (NH3, NaOH and KOH) is one of the factors affect on morphological structures, which has been studied in this work. Other effect has been studied in this work is zinc precursors such as Zn(NO3)2, ZnAc2, ZnCl2, and ZnBr2. The morphological structures of prepared ZnO were revealed using scanning electron microscope (SEM) and the aspect ratios were calculated. x-ray diffraction (XRD) patterns exposed a highly crystallized wurtzite structure and used for identifying phase structure and chemical state of ZnO under different preparation conditions. Keywords: sol-gel, morphological structures, reducing agent, SEM, preparation conditions.
{"title":"Influence of Reaction Time, Reducing Agent and Zinc Precursors on the Morphological Structures of Zinc Oxide","authors":"H. S. Hassan, A. Kashyout, H. Soliman, M. Uosif, N. Afify","doi":"10.0001/(AJ).V3I0.707.G857","DOIUrl":"https://doi.org/10.0001/(AJ).V3I0.707.G857","url":null,"abstract":"ZnO either nanoparticles or nanorods were synthesized via sol-gel technique. Many factors were studied and optimized in order to obtain different morphological structures of nano-ZnO. Effect of reaction time (3, 6, 12, 24 and 48 hours) has been studied to optimize the best preparation condition. Reducing agent (NH3, NaOH and KOH) is one of the factors affect on morphological structures, which has been studied in this work. Other effect has been studied in this work is zinc precursors such as Zn(NO3)2, ZnAc2, ZnCl2, and ZnBr2. The morphological structures of prepared ZnO were revealed using scanning electron microscope (SEM) and the aspect ratios were calculated. x-ray diffraction (XRD) patterns exposed a highly crystallized wurtzite structure and used for identifying phase structure and chemical state of ZnO under different preparation conditions. Keywords: sol-gel, morphological structures, reducing agent, SEM, preparation conditions.","PeriodicalId":7790,"journal":{"name":"Anglisticum Journal","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85440575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An innovative heteropolyacid salt of ion exchanger, nano-zirconium tungstovanadate has been synthesized under varying conditions using sol–gel technique. The different synthesized ion exchange materials were compared based on both their ion exchange capacity (IEC) and their efficiency in separating lead ions from aqueous streams by conducting batch experiments with a batch factor of 50ml/g. Nano- zirconium tungstovanadate prepared from the reaction of 0.2 M zirconium oxychloride, 0.2M ammonium metavanadate and 0.1 M sodium tungstate in presence of 0.01 M HCl at room temperature was record the highest IEC value that equal to 1.5 mequiv/g. Structural characterization of this most proper ion exchanger was performed with powder X-ray diffraction (XRD), thermogravimetry (TGA), scanning electron microscopy (SEM) equipped with energy dispersive spectrometer (EDS) and with inductively coupled plasma optical emission spectrometry (ICP-OES). The X-ray spectrum of the prepared material suggested that of Zr (IV) tungstovanadate is crystalline in nature with average crystallite size between 19 and 37 nm. The SEM result confirmed that the ion exchanger was produced in nano-scale with average particle diameter equal to 28 nm. Good thermal and chemical stabilities have also been observed for the prepared nano-zirconium tungstovanadate. On the basis of these results, the prepared nano-zirconium tungstovanadate is a promising cation exchanger for lead ion decontamination from the polluted water in view of the fact that lead ion removal rate was recorded up to 99.24 % within 3hours. Keywords: nano-zirconium tungstovanadate; sol-gel technique; equilibrium isotherm; Lead ion separation.
{"title":"Fabrication of an Inorganic Nano-Zirconium Tungstovanadate Ion Exchange to be Utilized for Heavy Metal Decontamination","authors":"M. Elkady, E. El-Sayed, H. Farag, A. Zaatout","doi":"10.0001/(AJ).V3I0.719","DOIUrl":"https://doi.org/10.0001/(AJ).V3I0.719","url":null,"abstract":"An innovative heteropolyacid salt of ion exchanger, nano-zirconium tungstovanadate has been synthesized under varying conditions using sol–gel technique. The different synthesized ion exchange materials were compared based on both their ion exchange capacity (IEC) and their efficiency in separating lead ions from aqueous streams by conducting batch experiments with a batch factor of 50ml/g. Nano- zirconium tungstovanadate prepared from the reaction of 0.2 M zirconium oxychloride, 0.2M ammonium metavanadate and 0.1 M sodium tungstate in presence of 0.01 M HCl at room temperature was record the highest IEC value that equal to 1.5 mequiv/g. Structural characterization of this most proper ion exchanger was performed with powder X-ray diffraction (XRD), thermogravimetry (TGA), scanning electron microscopy (SEM) equipped with energy dispersive spectrometer (EDS) and with inductively coupled plasma optical emission spectrometry (ICP-OES). The X-ray spectrum of the prepared material suggested that of Zr (IV) tungstovanadate is crystalline in nature with average crystallite size between 19 and 37 nm. The SEM result confirmed that the ion exchanger was produced in nano-scale with average particle diameter equal to 28 nm. Good thermal and chemical stabilities have also been observed for the prepared nano-zirconium tungstovanadate. On the basis of these results, the prepared nano-zirconium tungstovanadate is a promising cation exchanger for lead ion decontamination from the polluted water in view of the fact that lead ion removal rate was recorded up to 99.24 % within 3hours. Keywords: nano-zirconium tungstovanadate; sol-gel technique; equilibrium isotherm; Lead ion separation.","PeriodicalId":7790,"journal":{"name":"Anglisticum Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72798559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
During 2011 and 2012 seasons, three pomegranate cultivars Manfalouty, Wonderfull and Nab–Elgamal. were subjected to saline ground water at concentration (1.8 and 6.0 dSm-1). The trees about seven years old grown at 2.5 x 3.5 m apart in sandy clay loam soil under Sohag environmental conditions. Results revealed that irrigation with saline water (6dSm-1), increased salt accumulation in leaves. On the other hand the higher significant reduction was observed in growth; flowering and yield with highly fruit cracking in relative to 1.8 dSm-1. Total Sugar and acidity percentages did not alter significantly with varying Saline irrigation. The studied varieties were affected differently by salt-stress, Manfalouty, Wonderfull, and Nab-Elgamal in descending order in response to salinity. Keywords: Salinity, Pomegranate, Saline ground water, Salt-stress, Vegetative growth characteristics.
在2011年和2012年，三个石榴品种Manfalouty, Wonderfull和Nab-Elgamal。分别饲喂浓度为1.8和6.0 dSm-1的含盐地下水。这些树大约7岁，在Sohag环境条件下生长在沙质粘土壤土中，间距为2.5 x 3.5米。结果表明，以盐水(6dSm-1)灌溉，增加了叶片中盐分的积累。另一方面，在生长中观察到更显著的减少;开花和产量与高果裂相对于1.8 dSm-1。总糖和酸度百分比随盐水灌溉的变化不显著。盐胁迫、Manfalouty、Wonderfull和Nab-Elgamal对盐胁迫的响应从大到小影响不同。关键词:盐度，石榴，含盐地下水，盐胁迫，营养生长特性
{"title":"Comparative Responses of Three Pomegranates (Punica Granatum L.) Varieties to Salinity","authors":"S. El-KhawagaA., E. M. Zaeneldeen, M. Youssef","doi":"10.0001/(AJ).V3I0.722","DOIUrl":"https://doi.org/10.0001/(AJ).V3I0.722","url":null,"abstract":"During 2011 and 2012 seasons, three pomegranate cultivars Manfalouty, Wonderfull and Nab–Elgamal. were subjected to saline ground water at concentration (1.8 and 6.0 dSm-1). The trees about seven years old grown at 2.5 x 3.5 m apart in sandy clay loam soil under Sohag environmental conditions. Results revealed that irrigation with saline water (6dSm-1), increased salt accumulation in leaves. On the other hand the higher significant reduction was observed in growth; flowering and yield with highly fruit cracking in relative to 1.8 dSm-1. Total Sugar and acidity percentages did not alter significantly with varying Saline irrigation. The studied varieties were affected differently by salt-stress, Manfalouty, Wonderfull, and Nab-Elgamal in descending order in response to salinity. Keywords: Salinity, Pomegranate, Saline ground water, Salt-stress, Vegetative growth characteristics.","PeriodicalId":7790,"journal":{"name":"Anglisticum Journal","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81793477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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